Wu County Yanda air-conditioning plant is a design, development, production, construction, services of an integrated, the main production are: exhaust fan, exhaust fan fire, Francis fan, axial fans, mixed flow fans, roof fans, centrifugal fans, smoke damper, exhaust valves, dampers, check valves, control valve, aluminum outlet (single outlet, double outlet, since the vertical blinds, shutters rain, swirl diffusers, scattered converter), a total of flange plate duct, galvanized steel duct, inorganic glass steel duct, air conditioners, central air-conditioning muffler and other terminal equipment products & hellip;